drivers/misc/mediatek/gpu/mt8127/mali/ump/readme.txt

   1 Building the UMP Device Driver for Linux
   2 ----------------------------------------
   3
   4 Build the UMP Device Driver for Linux by running the following make command:
   5
   6 KDIR=<kdir_path> CONFIG=<your_config> BUILD=<build_option> make
   7
   8 where
   9     kdir_path: Path to your Linux Kernel directory
  10     your_config: Name of the sub-folder to find the required config.h file
  11                  ("arch-" will be prepended)
  12     build_option: debug or release. Debug is default.
  13
  14 The config.h contains following configuration parameters:
  15
  16 ARCH_UMP_BACKEND_DEFAULT
  17     0 specifies the dedicated memory allocator.
  18     1 specifies the OS memory allocator.
  19 ARCH_UMP_MEMORY_ADDRESS_DEFAULT
  20     This is only required for the dedicated memory allocator, and specifies
  21     the physical start address of the memory block reserved for UMP.
  22 ARCH_UMP_MEMORY_SIZE_DEFAULT
  23     This specified the size of the memory block reserved for UMP, or the
  24     maximum limit for allocations from the OS.
  25
  26 The result will be a ump.ko file, which can be loaded into the Linux kernel
  27 by using the insmod command. The driver can also be built as a part of the
  28 kernel itself.